Open AccessInvestigations of the photon fluences in various n+γ\=mixed fields in the fast neutron reactor
Author(s) -
Lei Jiarong,
Yuan Yong Gang,
Lin Zhang,
Zhao Min Zhi,
Cui Gao Xian
Publication year - 2003
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.52.53
Subject(s) - fluence , neutron , neutron flux , physics , photon , nuclear physics , materials science , irradiation , optics
The LET factors R(R≈005) of neutron response for LiF(Mg,Cu,P)TLD have been determined experimentally due to the existing LET effects of the response for LiFTLD to neutron absorbed dose.Based on the data,one experimental method to define the photon fluence in various n+γ mixed fields in the fast neutron reactor with coupled 6LiF7LiFTL detectors has been checked.The experimental results show that the ratios of the TL due to the effect of neutrons in 7LiF(Mg,Cu,P)to the total TL due to the combined effects of the γrays and neutrons are between 81% and 17.1%.In order to reduce the effect caused by the uncertainty of the neutron spectra and improve the accuracy of the measurement for the photon fluence,we propose a new LiFTLD,in which there are 50% 6LiF and 50% 7LiF.It is coupled with a 6LiFTLD to measure the photon fluence in the n+γ mixed fields.